A 1.4μW/MHz 100MHz RC Oscillator with ±1030ppm Inaccuracy from -40°C to 85°C After Accelerated Aging for 500 Hours at 125°C

Kyu Sang Park, Nilanjan Pal, Yongxin Li, Ruhao Xia, Tianyu Wang, Ahmed Abdelrahman, Pavan Kumar Hanumolu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Monolithic RC oscillators are increasingly becoming the preferred clock source in many applications, which typically have used bulky crystal or MEMS oscillators. Using novel methods to compensate for the frequency inaccuracy caused by the temperature coefficient (TC) of the resistors used in the reference RC networks, prior works have achieved excellent short-term frequency stability [1], [2]. While this level of performance undoubtedly makes RC oscillators a desirable option even in applications requiring medium-to-high stability clock sources, they cannot be deployed commercially until the performance is guaranteed over their lifetime. Unfortunately, literature on the aging behavior of RC oscillators is scarce. Given this critical shortcoming, this paper quantifies aging in RC oscillators and presents methods to overcome it. The results obtained from prototype oscillators indicate that aging can cause more than 5000ppm long-term frequency drift. The proposed compensation techniques reduce it to less than 500ppm.

Original languageEnglish (US)
Title of host publication2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages62-64
Number of pages3
ISBN (Electronic)9781665428002
DOIs
StatePublished - 2023
Event2023 IEEE International Solid-State Circuits Conference, ISSCC 2023 - Virtual, Online, United States
Duration: Feb 19 2023Feb 23 2023

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume2023-February
ISSN (Print)0193-6530

Conference

Conference2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
Country/TerritoryUnited States
CityVirtual, Online
Period2/19/232/23/23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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